Skip to main content
4 Port PCI Express RS232 Serial Adapter Card, PCIe RS232 Serial Host Controller Card, PCIe to 4 Serial DB9 Card, PCI E Serial Card Stable Performance
Dilwe

Dilwe 4 Port PCI Express RS232 Serial Adapter Card

Bottom line: The Dilwe 4 Port PCI Express RS232 Serial Adapter Card is a specs-and-price decision rather than a crowd-consensus one in the expansion cards category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

Check price on Amazon

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Check price on Amazon → Compare to similar expansion cards

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ Backed by Dilwe's warranty and support channels

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

Feature:1. 4 RS232 Serial Ports: Features 4 x 9pin RS232 serial ports allowing easy connection of more serial devices to your computer.2. PCI Express X1 Interface: PCI Express x1 interface (also suitable for PCI-E x1, x4, x8, x16 slots) for excellent performance and long life.3. Characteristics: Has a stable and chipset for AX99100 with a enhancement chip. Supports remote wake up and power management functions.4. PCI Express: Single lane (X1) PCI Express endpoint control with PHY integration, PCI Express 2.0 Gen 1 compliant, PCI Express Card Specification compliant, PCI Power Management 1.2…

Related Products

Other products in this category you may like:

SpecPicks Verdict

SpecPicks scored Dilwe 4 Port PCI Express RS232 Serial Adapter Card using a rating × review-volume × price-fit model applied to published specs and reviews across the expansion cards category. Dilwe's expansion cards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for expansion cards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • 4 RS232 SERIAL PORTS: Features 4 x 9pin RS232 serial ports allowing easy connection of more serial devices to your computer.
  • PCI EXPRESS X1 INTERFACE: PCI Express x1 interface (also suitable for PCI-E x1, x4, x8, x16 slots) for excellent performance and long life.
  • CHARACTERISTICS: Has a stable and chipset for AX99100 with a enhancement chip. Supports remote wake up and power management functions.
  • PCI EXPRESS: Single lane (X1) PCI Express endpoint control with PHY integration, PCI Express 2.0 Gen 1 compliant, PCI Express Card Specification compliant, PCI Power Management 1.2 compliant, supports interrupts, supports ASPM power management.
  • APPLICATIONS: Serial connected devices, serial monitoring devices, data acquisition systems, POS terminals and industrial PCs, I/0 expansion of serial I/0/USB embedded systems for add on cards.

Full Specifications

BrandDilwe
StyleClassic
Style NameClassic
ConnectivityUSB
Model NumberDilwea30f7t28v4862
CHARACTERISTICSHas a stable and chipset for AX99100 with a enhancement chip. Supports remote wake up and power management functions.
Mfr Part NumberDilwea30f7t28v4862
Compatible DevicesPersonal Computer, Laptop, POS Terminal, Industrial PC, Data Acquisition System, Serial Monitoring Device, Embedded System, Printer, Router
Hardware InterfacePCI, USB
4 RS232 SERIAL PORTSFeatures 4 x 9pin RS232 serial ports allowing easy connection of more serial devices to your computer.
PCI EXPRESS X1 INTERFACEPCI Express x1 interface (also suitable for PCI-E x1, x4, x8, x16 slots) for excellent performance and long life.
Full listing title4 Port PCI Express RS232 Serial Adapter Card, PCIe RS232 Serial Host Controller Card, PCIe to 4 Serial DB9 Card, PCI E Serial Card Stable Performance

Ready to buy?

4 Port PCI Express RS232 Serial Adapter Card, PCIe RS232 Serial Host Controller Card, PCIe to 4 Serial DB9 Card, PCI E Serial Card Stable Performance is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

Related Expansion Cards

Keep exploring SpecPicks

Other buying guides

Browse the catalog

Editorial

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →
4 Port PCI Express RS232 Serial Adapter Card, PCIe RS232 Serial Host Controller Card, PCIe to 4 Serial DB9 Card, PCI E Serial Card Stable Performance
View on Amazon →